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1. Understand
a. What is asked
b. What are the given facts

2. Plan

3. Solve:

4. Check:​

1 Understanda What Is Askedb What Are The Given Facts2 Plan3 Solve4 Check class=

Sagot :

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[tex] \star \tt \red{ANSWER} \star[/tex]

1. UNDERSTAND

A. What is asked?

  • The area of the roller rink floor
  • The cost of hardwood flooring

B. What are the given facts

  • 80 ft – lenght, 40 ft – width, 20 ft – radius and P200 per square foot

2. PLAN

Lets analyze and identify the figures, The figures that we can easily identify are the rectangle and the two semi-circle. Find the area of each figure

3. SOLVE :

Area of rectangle

A = L × W

  • = 80 ft × 40 ft
  • 3 200 ft²

Area of the Circle

[tex]A = \pi r^{2} [/tex]

[tex]A = \pi(20ft)^{2} [/tex]

[tex]A = 3.14 \times 400 {ft}^{2} = 1 \: 256 {ft}^{2} [/tex]

[tex]area {\tiny{total}} \: = area{ \tiny{rectangle}} \: + area{ \tiny{circle}}[/tex]

[tex]area {\tiny{total}} = 3200 + 1256 \\ = 4456 {ft}^{2} [/tex]

If hardwood flooring costs P200 per square foot, then:

4 456 ft² × P200 = P891 200

4. CHECK : P891 200 ÷ P200 = 4 456

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